Electric fluid-heating apparatus



E. FREDRIKSEN.

ELECTRIC FLUID HEATING APPARATUS. APPLICATION FILED 1AN.29, 1920.

1,385,441 Patented July 26, 1921.

W a I NVENTOR EDWARD F EoRmsEN, P)

PATENT OFFICE.

nnwann rnnnmxsnn, or cnms'rnmm. NORWAY. V

' ELECTRIC FLUID-HEATING Arrnn'a'rus.

l Specification of Letters Patent. Patented July 26',

7 Application filed January 29, .1920. Serial No. 354,996.

To all whom it may concern I Be it known that I, Eowann Fnnonmsnn,

, citizen of Norway, residingat Christiania,

Norway, have invented certain new and useful Improvements in Electric Fluid-Heating Apparatus, of which the following is a specification.

may be removed or the container.

The present .inventionjrelates to an elec-- trio fluid heating apparatus of the kind at which the fluid perpetually flows through the apparatus. The'invention is mainly distinguished by this, that the heating units may be removed from the apparatus without disturbing it is possible to'repair .or exchange a heating unit without touching the fluid tubes, which always is of reat advantage.

7 A constructional iorm of the invention is shown an example in the accompanying drawing, in which:

Figure 1 is a vertical section through the apparatus. I 1 l ig. 2 is a section after the lines I -I in Fig. 1. I

-.1-and .-2 denote the inlet and the i outlet-tubes. is a proportionally low below which the heating units container, 4 are arranged. These are as will be seen applied to a s ecial frame 5-+, which rom the apparatus without in any way disturbing the fluid tubes nate in pin :plugs -6 and '-7 or the like, which render it possible that the heating units also may be, removed'easily from the electric supply wires. Below the heating units are covered by a plate 8- with an aperture --9-, throu%h which the tube .-1- may pass freely. he plate -8-- is preferably furnished with an' inner coating -10- isolating against heat as well as against electricity. As long as the apparatus' is fully in order the plate 8 is held closely to the heating units by means of the pins 11-, whichprotrudes through the connections between this and the inlet and the outlet-tubes, so that.

The heating units termi-.

holes in the plate *8 and are equipped with locking nuts or the like on the under side of the said plate. When it is wanted to take out a heating unit the locking nuts are removed, whereby the plate -8- will drop down upon the nut -12- on the water I conduit, so that the frame 5- moved easily.

Having now particularly described and ascertained the nature of my said invention and in what manner the same is to be performed, I declare thatwhat I claim is 1. In apparatus of the character described, a liquid container, inlet and outlet tubes connected. therewith, a removable heating may be re member operatively associated with said, I for said heating member removably connected to said concontainer, and a housing tainer.

2.,In apparatus of the character described, a liquid container, inlet and outlet tubes connected therewith, a removable heatmg member operatively associated with said I container, and a housing for said heating member removably connected to said container and slidingly mounted upon one of said tubes. I

3. In apparatus of the character described, a container, inlet and outlet tubes connected therewith a removable heating member comprising a frame and heating means carried thereby, and means removably connectedto said container to house said heating member and to hold said heating member in operative relation to said container.

4. In apparatus" of the character described, a liquid container, inlet and outlet tubes connected therewith, a removable heating member adapted to straddle one of said tubes, and means removably connected to said container to hold said heating unit in operative relation to said container.

In testimony whereof I aiiix my signature.

EDWARD FREDRIKSEN. 

